Mathematics 0580 · IGCSE · Similarity

Similarity — practice question

The diagram shows two triangles, ABC and PQR, and it is marked NOT TO SCALE. In triangle ABC, AC measures 1.61 cm and CB measures 2.8 cm. In triangle PQR, RQ measures 3.2 cm and PR is labelled $x$ cm. Triangle ABC is mathematically similar to triangle PQR.
(main)[2]

Find $x$.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Working: $\frac{1.61}{x}=\frac{2.8}{3.2}$” …

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